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Device provided with at least one laser diode and assembly including such a device and a connector to an electric power supply

a technology of laser diodes and laser diodes, which is applied in the direction of lasers, semiconductor laser structural details, coupling device connections, etc., can solve the problem of irreversible damage to the laser diodes

Inactive Publication Date: 2001-09-04
LASAG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a voltage of incorrect polarity exceeding the breakdown threshold of the laser diode is applied thereto, the voltage generally causes irreversible damage to the laser diode.

Method used

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  • Device provided with at least one laser diode and assembly including such a device and a connector to an electric power supply
  • Device provided with at least one laser diode and assembly including such a device and a connector to an electric power supply

Examples

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Embodiment Construction

With reference to FIGS. 1 to 3, an embodiment of a device provided with at least one laser diode according to the invention and an assembly including such a device and a connector intended to connect the device electrically to an electric power supply will be described hereinafter.

Device 1 includes a laser transmission unit 2 formed of at least one laser diode and two electric connection members 4 and 6 defining respectively a cathode and an anode of said device 1. Members 4 and 6 are used as electric connection means between an external electric power supply 8 and laser unit 2. Unit 2 and members 4 and 6 are arranged on a base 10 made of electrically conductive material and are electrically insulated from said base 10 by an insulating layer 12. Connection members 4 and 6 are each L shaped.

According to the invention, the device also includes two contact studs 14 and 16 formed of an electrically conductive material respectively associated with two springs 18 and 20 arranged in base 1...

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PUM

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Abstract

The device is provided with at least one laser diode (2) and two electric connecting members for connection to an electric power supply (8) for supplying said at least one laser diode. It includes two elements (14, 16) which can be elastically deformed or moved, which are conductive electrically and arranged in a base electrically insulated from the two connecting members. The two elastically deformable or moveable elements are electrically connected and arranged so as to abut against two respective contact surfaces (34, 36) of the two connecting members when the device is not connected to said power supply by means of an external connector (40) which is complementary to the two electric connecting members. The two elastically deformable or moveable elements are respectively separated from the two connecting members when the external connector is introduced or are able to be respectively separated from said two connecting members when the external connector is introduced.

Description

BACKGROUND OF INVENTIONThe present invention concerns the field of devices provided with at least one laser diode and installations or assemblies including such a device with a connector to an electric power supply intended for the device provided with at least one laser diode.A laser diode is sensitive to the polarity of a supply voltage or any other voltage applied across the anode and the cathode of said laser diode or device provided with at least one laser diode which is supplied with power by said anode and said cathode. If a voltage of incorrect polarity exceeding the breakdown threshold of the laser diode is applied thereto, the voltage generally causes irreversible damage to the laser diode. Thus, it is important to protect the laser diodes and any device integrating such laser diodes from the application of incorrect polarity voltage in particular exceeding the breakdown threshold of such laser diodes and particularly from electric discharge which can occur when such laser...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H01R13/703H01R13/70H01S5/00H01S5/02H01R13/24H01R13/22H01S5/042H01S5/022
CPCH01R13/7031H01R13/2421H01S5/042H01S5/02208
Inventor GRESSLY, ANDREFREI, BRUNO
Owner LASAG AG